OpenXRay/xray-16 ? reverse-engineered prompt

Build me the OpenXRay engine so I can compile and run this improved version of the S.T.A.L.K.E.R. X Ray engine from source.

I want a working setup that builds on my machine, launches cleanly, and follows the project’s goal of staying close to vanilla while improving performance, fixing bugs, and supporting mods. Make sure it supports the game versions the project mentions, especially Call of Pripyat, Call of Chernobyl, and Clear Sky, and keep Shadow of Chernobyl and the newer editions out of scope if they are not supported yet.

Please use the existing docs if needed, and look up current build details online if anything is unclear. I’d also like the result to be easy to extend for mod makers, with sensible defaults and the option to enable extra features without breaking compatibility with original game data.